Wellhead slip and seal assembly
CA 1303975 C · Owner: Cameron Iron Works Usa, Inc. · Inventors: Baugh, Benton F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved wellhead slip and seal assembly including a slip assembly with slips supported within a slip bowl and a seal assembly positioned above the slip assembly and interconnected thereto for supporting said slip assembly the seal assembly including two segments connected to form the seal ring and each of the segments includes arcuate elements embedded in a resilient material which forms an inner seal in an inner groove, the inner seal having an inner diameter sufficient smaller than the outer diameter of the pipe to which it is to seal and an outer seal of the resilient material in an outer groove, the outer seal having an outer diameter sufficiently larger than the inner diameter of …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.